21495 Cold Spring Ln, Diamond Bar, CA 91765

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Off Market Dec 2016 for $1M

$1,549,780

Est. refi paymentEst. refi $2,227/mo

•

3,424

sq ft

21495 Cold Spring Ln, Diamond Bar, CA 91765

About this home

Amazing 2 story home. * 3,424 sqft * . * * 3 suite upstairs, 1 suite downstairs. one guest powder room. Den(can be converted as Gym room, or kid's playroom, or even a extra bedroom). * * Special feng-shui designed Entryway. Elegance high ceiling formal living room. Warmly family room with classic marble fireplace. Gourmet kitchen with stainless appliances plus granite counter top. * * Formal dining room, and big size breakfast room (could be 2nd dining room) with sliding door leads to covered patio. * * Walnut Valley Unified School District, * * Walking distance to supermarket and restaurants. * * very easy access to Fwy 57/60. * * * * Best deal in south Diamond Bar area. Don't miss this opportunity * * * *

Single-familyProperty Type

1977Year Built

0.27 acresLot Size

$453Est. Price/Sq.Ft.

3 car garageParking

Listed by Paul Tai •DRE #00940977 • Encore Realty & Financial

Listed by Jeannie Ma •DRE #01146221 • Encore Realty & Financial

Bought with LAI CHAN •DRE #01876961 • KO TAI REALTY

Redfin checked: 2 minutes ago

•Source:CRMLS #TR16737035

Redfin Estimate

$1,549,780

$530K since sold in December 2016$4,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.3% higher than the average sale price ($1.43M) of 6 comparable homes.

SOLD MAY 28, 2026
$1,505,000
A
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765
SOLD MAY 12, 2026
$1,680,000
B
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD MAY 14, 2026
$1,330,000
C
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD JUL 10, 2026
$1,350,000
D
4 beds3 baths2,268 sq ft
1754 Leaning Pne, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
E
4 beds3 baths2,380 sq ft
3396 Hawkwood, Diamond Bar, CA 91765
SOLD OCT 14, 2025
$1,475,000
F
4 beds3 baths3,026 sq ft
21533 Ambushers St, Diamond Bar, CA 91765

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Sell

$817,748

Est. take-home

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Refinance

Est. cash available

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Rent

$4,898/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

98.5%

0.6% MoM

Median sale price

$1.1M

$10K MoM

Avg. days on market

43d

1 days MoM

Recently sold homes

100

5 MoM

New listings for sale

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22719 Lakeway #402, Diamond Bar, CA 91765
KC Realty Group
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1320 S Diamond Bar Blvd Unit D, Diamond Bar, CA 91765
3D WALKTHROUGH
$585,000
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1109 Golden Springs Dr Unit D, Diamond Bar, CA 91765
OPEN TODAY, 12PM TO 3PM
$1,299,000
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3581 Hawkwood, Diamond Bar, CA 91765
The Agency
OPEN TODAY, 12PM TO 2PM
$515,000
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1060 Golden Spgs Unit E, Diamond Bar, CA 91765
OPEN TODAY, 12PM TO 3PM
$949,979
4 beds2 baths1,465 sq ft
227 N Pintado Dr, Diamond Bar, CA 91765
$1,380,000
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1553 High Bluff Dr, Diamond Bar, CA 91765
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See all

Provided by Redfin

Sale history for 21495 Cold Spring Ln

Date

Event

Price

CRMLS #TR16737035

Dec 21, 2016

Sold

$1,020,000

$298/sq ft

Dec 14, 2016

Pending

—

Dec 13, 2016

Contingent

—

Nov 17, 2016

Price Changed

$1,088,800

$318/sq ft

Nov 17, 2016

Listed

$10,888,000

$3,180/sq ft

CRMLS #TR16123148

Sep 30, 2016

Listing Removed

—

Jul 27, 2016

Price Changed

$1,280,000

$374/sq ft

Jun 8, 2016

Listed

$1,395,000

$407/sq ft

Public Records

Jun 27, 1991

Sold

$335,000

$98/sq ft

Public Records

Jun 5, 1986

Sold

$188,500

$55/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$15,029 (+5.5%)

$545,704 + $638,086

$1,183,790

2024

$14,250 (+2.8%)

$545,704 + $638,086

$1,183,790

2023

$13,859 (+2.5%)

$535,004 + $625,575

$1,160,579

2022

$13,524 (+1.9%)

$524,514 + $613,309

$1,137,823

2021

$13,270 (+1.3%)

$514,230 + $601,284

$1,115,514

2020

$13,100 (+2.0%)

$504,148 + $589,495

$1,093,643

2019

$12,847 (+4.0%)

$498,979 + $583,451

$1,082,430

2018

$12,347 (+4.8%)

$489,196 + $572,011

$1,061,207

2017

$11,776 (+28.6%)

$470,200 + $549,800

$1,020,000

2016

$9,159 (−0.6%)

$470,200 + $549,800

$1,020,000

2015

$9,217

$243,671 + $543,911

$787,582

2014

$9,225 (+13.5%)

$235,310 + $525,247

$760,557

2012

$8,130 (−8.4%)

$222,000 + $497,000

$719,000

2011

$8,871 (+0.7%)

$202,900 + $452,800

$655,700

2010

$8,807 (−0.9%)

$225,151 + $502,571

$727,722

2009

$8,889 (+47.8%)

$223,469 + $498,815

$722,284

2008

$6,015

$224,000 + $500,000

$724,000

Tax history for 21495 Cold Spring Ln

Year

Property tax

Land + Additions

Assessment*

2025

$15,029 (+5.5%)

$545,704 + $638,086

$1,183,790

2024

$14,250 (+2.8%)

$545,704 + $638,086

$1,183,790

2023

$13,859 (+2.5%)

$535,004 + $625,575

$1,160,579

2022

$13,524 (+1.9%)

$524,514 + $613,309

$1,137,823

2021

$13,270 (+1.3%)

$514,230 + $601,284

$1,115,514

2020

$13,100 (+2.0%)

$504,148 + $589,495

$1,093,643

2019

$12,847 (+4.0%)

$498,979 + $583,451

$1,082,430

2018

$12,347 (+4.8%)

$489,196 + $572,011

$1,061,207

2017

$11,776 (+28.6%)

$470,200 + $549,800

$1,020,000

2016

$9,159 (−0.6%)

$470,200 + $549,800

$1,020,000

2015

$9,217

$243,671 + $543,911

$787,582

2014

$9,225 (+13.5%)

$235,310 + $525,247

$760,557

2012

$8,130 (−8.4%)

$222,000 + $497,000

$719,000

2011

$8,871 (+0.7%)

$202,900 + $452,800

$655,700

2010

$8,807 (−0.9%)

$225,151 + $502,571

$727,722

2009

$8,889 (+47.8%)

$223,469 + $498,815

$722,284

2008

$6,015

$224,000 + $500,000

$724,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.27 Acres

Year renovated

1980

Sq. Ft.

3,424

Year built

1977

Style

Single Family Residential

County

Los Angeles County

APN

8714004014

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 30, 2026.

Low Density Residential District

The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.

Permitted uses

Include but are not limited to:

Livestock production
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space

Property details

Parking

Parking / Garage Information
# of Garage Spaces: 3
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Individual Room, Inside

Bathroom Information
# of Baths (Full): 4
# of Baths (1/2): 1

Cooling Information
Central
Has Cooling

Room Information
Family Room, Formal Entry, Kitchen, Laundry, Living Room, Primary Suite, Walk-In Closet

Fireplace Information
Family Room, Gas, Gas Starter
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Beamed Ceilings
Levels: Two
Main Level Bathrooms: 1
Main Level Bedrooms: 1

Exterior

Exterior Features
Pool Features: None
Has Sprinklers

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Landscaped, Lawn, Lot 10000-19999 Sqft, Sprinklers In Front, Sprinklers In Rear, Sprinklers Timer

Property Information
Common Walls: No Common Walls
Parcel Number: 8714004014
Total # of Stories: 2
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer: Public Sewer
Water Source: District/Public

Location

Neighborhood Information
Community Features: Curbs, Gutters, Sidewalks, Street Lighting

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96733400
Longitude: -117.84017100
Directions: Diamond Bar Blvd and Cold Spring Lane
Zoning: LCR19000*

Public facts

Beds: 4
Baths: 5.0
Sq. Ft.: 3,424
Stories: —
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1980
County: Los Angeles County
APN: 8714004014

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 13
Continuous Days Active in MLS: 127

Listing Agent Information
List Agent First Name: Paul
List Agent Last Name: Tai
Co-List Agent First Name: Jeannie
Co-List Agent Last Name: Ma

Listing Office Information
List Office Name: Encore Realty & Financial
Co-List Office Name: Encore Realty & Financial

Selling Agent Information
Buyer Agent First Name: LAI
Buyer Agent Last Name: CHAN

Selling Office Information
Buyer Office Name: KO TAI REALTY

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.4mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.7mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.0mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

5% chance of being in a wildfire in next 30 years

5/10 Heat Factor

6 days above 98° expected this year, 17 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Diamond Bar, CA • 91765

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.47M – $1.78M

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Home values near 21495 Cold Spring Ln

Data from public records.

Address	Redfin Estimate
21504 Cold Spring Ln, Diamond Bar, CA 4 Beds \| 3 Baths \| 2712 Sq. Ft.	$1,422,152
21496 Cold Spring Ln, Diamond Bar, CA 4 Beds \| 3 Baths \| 2712 Sq. Ft.	$1,647,056

Address	Redfin Estimate
21502 Cold Spring Ln, Diamond Bar, CA 3 Beds \| 3 Baths \| 2321 Sq. Ft.	$1,281,853
21494 Cold Spring Ln, Diamond Bar, CA 3 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,198,405

Address	Redfin Estimate
21498 Cold Spring Ln, Diamond Bar, CA 5 Beds \| 3 Baths \| 2796 Sq. Ft.	$1,429,924
21492 Cold Spring Ln, Diamond Bar, CA 4 Beds \| 3 Baths \| 2378 Sq. Ft.	$1,391,560

Property information provided by CRMLS when last listed in 2016. This data may not match . Learn more.

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